102 results about "Polymer clay" patented technology

A method and system of forming a polymer nanocomposite. A layered clay and polymer are selected wherein |S_p−S_scf|>|S_c−S_scf| and |S_c−S_scf|≦2.0 (cal/cm³)^0.5 are satisfied. S_p, S_c, and S_scf is a solubility parameter of the polymer, clay, and a supercritical fluid (SCF), respectively. The polymer and clay are mixed to form a polymer-clay mixture. The polymer-clay mixture is melted to form a polymer-clay melt. The polymer-clay melt is initially contacted with the SCF while the SCF is subject to an initial pressure exceeding the critical pressure of the SCF and to a temperature exceeding the critical temperature of the SCF. The polymer-clay melt is further contacted with the SCF while the SCF is at a lower pressure below the critical pressure of the SCF to exfoliate the clay to form the nanocomposite having the exfoliated clay being substantially dispersed throughout the polymer of the polymer-clay.

A method and system for forming a polymer nanocomposite. A peroxide-degradable polymer, a clay, and a peroxide are mixed to form a polymer-clay-peroxide mixture. The polymer-clay-peroxide mixture is then heated forming a polymer-clay-peroxide melt containing peroxide radicals. The result is a degradation of the peroxide-degradable polymer within the melt to form smaller molecular weight polymer chains using the peroxide radicals and a diffusion of said polymer chains into the clay within the melt so as to exfoliate the clay to form the polymer nanocomposite having exfoliated clay being randomly dispersed throughout the polymer nanocomposite.

The invention belongs to the technical field of oil production engineering, and provides a preparation method of a low molecular weight polymer clay stabilizer. The clay stabilizer is prepared from raw materials of carbon-containing ammonium salt and 2-acrylamido-2-methyl propane sulfonic acid (AMPS) in the presence of an initiator in an aqueous solution through polymerization. The number average molecular weight of the polymer is less than 50000. The sulfonic acid group is introduced into the polymer stabilizer, so as to increase the water solubility and high temperature performance of the polymer. The stabilizer can form multiple point adsorption with a plurality of clay particles in the water; after adsorption, a layer of protective film is formed on the surface of clay particles to prevent expansion and migration of clay particles; and the stabilizer has the high temperature resistance performance reaching more than 120 DEG C.

The invention relates to a clay antiswelling agent for petroleum extraction and a preparation method thereof. The preparation method comprises the following steps of: dissolving 50-90 percent of diallyl ammonium chloride monomer and 10-50 percent of triallylamine monomer into distilled water according to mass proportion, wherein the total mass proportion concentration of the two monomers is 20-80 percent; adding into a reactor; charging nitrogen; adding initiator at 65-85 DEG C, wherein the initiator is ammonium persulfate, potassium persulfate or hydrogen peroxide; and reacting for 4-6 hours to obtain a polymer clay antiswelling agent for petroleum extraction, which has the molecular structure that three branch chains contain organic cations. The antiswelling agent has high inhibiting performance on clay, durable antiswelling effect, water scouring resistance and no damage to the stratum and can be used for water injection, acidification and well control fluid.

A method of producing a polymer-clay nanocomposite comprises providing a supply of polymer-clay mixture, exfoliating the mixture through solid-state shear pulverization in the presence of cooling sufficient to maintain the extruded mixture in the solid state during the pulverization, and discharging the resulting exfoliated mixture. The invention is also directed to a method of producing a polymer hybrid nanocomposite, wherein a component is dispersed throughout a polymer matrix by solid-state shear pulverization of a polymer mixed with the second component.

A transparent, non-yellowing, polymer-clay, concrete sealer and methods for making and applying the same. The disclosed clay-based sealer provides a tough, ultraviolet-light-, temperature-, and abrasion-resistant layer that effectively protects surfaces from moisture penetration, staining, dirt, dust, and wear. The substrates to which the clay-based sealer may be applied include, but are not limited to, above and below grade concrete structures, brick, concrete masonry unit (CMU) block, grout, plaster, gunite, tile, and aggregate. The clay-based sealer may easily be applied with airless or air-assisted sprayers, or by roller, brush, or applicator pad. Once applied, the sealer requires minimal maintenance.

A process for producing a nanocomposite of a halogenated elastomer and an inorganic, exfoliated clay includes the in-situ protonation of a modifier, which may be an alkylamine, arylamine or an alkylarylamine. This process can be integrated with a polymer halogenation process. The nanocomposite so formed has improved air barrier properties and is suitable for use as a tire innerliner or innertube.

The present invention relates to a preparation method of the high-efficient algae flocculating thing, which is easy to be stored and transported, in particular to a preparation method for the high- efficient algae flocculating powder, which uses a kind of innoxious, easy for biological separating and low-cost natural macromolecule polymer clay and also uses some modern separating technology including drying and freezing. The algae flocculating powder produced by the method can be used for fathering seawater tide, freshwater sublimation as well as for wiping off the deleterious algae in the riverway and the waterworks. The present invention is characterized in high-efficiency, low-cost and easy to be stored and transported. The present invention belongs to the water treatment technology region.

A polymer clay slicer having a base which supports a platform positionally adjustable in relation to a blade carrier which operates to engage a blade with an amount of polymer clay located on the platform to generate polymer clay slices having a desired thickness.

The present invention discloses a method to prepare the polymer-clay nanocomposite latex. At first, a clay and a water-soluble initiator are mixed in water to form an intermediate solution, in which the initiator is absorbed or intercalated into the clay. Then, at least one monomer from vinyl ester, acrylic and acrylamide derivatives is added into the intermediate solution for soap-free emulsion polymerization, which may also be added with some other monomers such as acrylic acid, maleic anhydride, vinyl chloride, acrylonitrile ethylene, et al. for copolymerization. During soap-free emulsion polymerization, the radicals from the dissociated initiators will react with the monomers to form the monomer radicals, which tend to diffuse into the interlayer region of clays for further polymerization and eventually exfoliate the clays. The prepared exfoliated polymer-clay nanocomposite latex can be cast into a vapor-impermeable film so that it can be used as a sealing material or coating. The exfoliated clay in nanoplatelet form is a two-dimensional electrolyte nanomaterial and its aqueous solution is conductive. The exfoliated clay aqueous solutions can be prepared by removing the polymer matrix from the nanocomposite latex with solvent. As the exfoliated clay solution is cast into a film with the clay content is more than or equal to 80 wt %, the film is semi-conductive. Thus, the exfoliated clay aqueous solutions can be applied to the electronic materials and organic/inorganic multilayer composite films.

This invention relates to an aqueous based process for the preparation of intercalated and/or exfoliated natural or synthetic clays using block copolymers in latex form containing at least one non-polar block and one or more cationic blocks, wherein the block copolymers are prepared by an emulsion controlled free radical polymerization method.

The invention discloses red attapulgite polymer clay powder, and the key points of the technical scheme are as follows: the red attapulgite polymer clay powder consists of attapulgite clay after purification, white bentonite, sepiolite, everbright fast red, anatase titanium dioxide, calcium chloride, sodium polyacrylate, sodium carboxymethyl cellulose and sodium stearyl lactylate. A finished product of the red attapulgite polymer clay powder is prepared by mixing ingredients of the red attapulgite polymer clay powder, inputting into a crushing machine for crushing, further inputting the mixed materials after crushing into a pulverizing mill for pulverizing and packaging. Red attapulgite polymer clay produced by adding water in the red attapulgite polymer clay powder has the characteristics of high viscosity, softness, good plasticity, small shrinkage rate, hardening after natural drying, no need of baking, no production of cracks, no skin irritation, no toxicity, no corrosion and no greasy feeling. The red attapulgite polymer clay powder has simple production process, low cost and convenient use, and is conductive to popularization, and the red attapulgite polymer clay powder is applicable to field production of the red attapulgite polymer clay.

The invention provides an oil reservoir modification acid liquor and an oil production method by using the same, belonging to the technical field of oilfield operation. The acid liquor is prepared from 50-200 parts of phosphorous acid, 100-300 parts of ammonium nitrate, 500-1000 parts of potassium chloride, 100-300 parts of hydrochloric acid, 50-200 parts of hydrofluoric acid, 100-300 parts of formic acid, 50-200 parts of acetic acid, 50-300 parts of citric acid, 50-300 parts of organic cationic polymer clay stabilizer and 0-100 parts of water. The oil reservoir modification acid liquor is applicable to various limestone and dolomite reservoirs, and various limestone, dolomite, mud and silica cemented sandstone reservoirs. The oil reservoir modification acid liquor is suitable for various reservoirs of which the porosity lower limit is 1% and the permeability lower limit is 0.1 millidarcy. The oil reservoir modification acid liquor can effectively dissolve caulking substances in pores of various reservoirs, improve the permeability of the reservoirs, and increase the yield of the crude oil.

An artistic clay material used to prepare multi-layer color artworks is prepared from powdered PVC resin (43-45%), dioctylester (15-20), plastics (2-5) and calcium carbonate (32-35). Its artwork is calcined at 130-140 deg.C for 30 min, and features low calcine temp. and gay and multi-layer colors.

The invention belongs to the technical field of oil field chemical descaling and plugging removal agents to solve the technical problem that an existing plugging removal processing effect is poor. A descaling and plugging removal agent used for an oil field injection and production layer comprises an organic multifunctional plugging removal agent, an inorganic multifunctional plugging removal agent and a multifunctional composite synergist. The organic multifunctional plugging removal agent comprises carbon 7-9 aromatic hydrocarbon, a polyoxyethylene ether surfactant, an oil-soluble water-dispersible polyether demulsifier, fatty alcohol-polyoxyethylene ether, a polyether wetting agent and a mutual solvent; the inorganic multifunctional plugging removal agent comprises hydrochloric acid, modified silicic acid, a sulfate scale complexing dispersant, a cationic polymer clay stabilizer, a water-soluble polyether demulsifier, a corrosion inhibitor, an iron ion stabilizer and a polyether wetting and improving agent; the multifunctional composite synergist comprises hydrochloric acid, acetic acid, a corrosion promoter, a polyether wetting and improving agent, a cationic polymer sand stabilizing agent, an iron ion stabilizing agent and a conversion agent.

An artistical clay material is prepared from powdered PVC resin (43-45%), dioctylester (15-20), plastics (2-5) and calcium carbonate (32-35). Its artwork can be calcined at 130-140 deg.C for less than 30 min, and features low calcine temp. gay color and high firmness.

The invention relates to soft pottery clay and a manufacturing method thereof. The soft pottery clay comprises the following components which are mixed together: polyvinyl chloride paste resin, aluminum distearate, zinc stearate, calcium stearate, dioctylphthalate, titanium white powder, mixed resins and silicon dioxide. The manufacturing method of the soft pottery clay comprises the following steps: 1) supplying polyvinyl chloride paste resin, aluminum distearate, zinc stearate, calcium stearate, dioctylphthalate, titanium white powder, mixed resins and silicon dioxide, mixing and stirring, and then standing by and cooling; 2) after cooling, placing into a stirrer for stirring, and then taking out and naturally cooling; 3) after cooling, placing into the stirrer for stirring again, and then taking out and naturally cooling; and 4) after cooling, mixing with white powder and uniformly stirring, and cooling, thereby obtaining an end product. The soft pottery clay can be processed into various patterns through a handicraft and the patterns can be attached to the surface and the interior of an object. If the soft pottery clay is not processed at high temperature, the soft pottery clay is reusable and is ultrahigh in plasticity and viscidity.

The invention relates to an AM/NAI/APEG (Acrylamide/N-Allylimidazole/Allyl Alcohol Polyoxyethylene Ether) polymer clay stabilizer for inhibiting clay hydration in a well drilling process and a synthesis method thereof. The technical scheme provided by the invention is that the used monomer comprises the following components in percentage by mass: 88.5-94.8 percent of acrylamide (AM), 0.2-1.5 percent of N-allylimidazole (NAI) and 5-10 percent of allyl alcohol polyoxyethylene ether (APEG). The preparation method comprises the following steps of: adding 10 g of AM, 0.05 g of NAI and 2 g of APEG into a reactor of 250 m to prepare aqueous solution with monomer total mass percentage concentration of 10-20 percent; adjusting pH (Potential of Hydrogen) to be 2-3 by using hydrochloric acid; introducing nitrogen for 20 minutes, wherein the molar ratio of ammonium persulphate to sodium hydrogensulfite is 1:1, and the amount of added initiator is 0.1-0.5 percent of the total mass of the monomer; continuously introducing nitrogen for 10 minutes; reacting at the temperature of 30-70 DEG C for 4-12 hours; and finally washing for three times by using absolute ethanol, crushing and drying to prepare AM/NAI/APEG terpolymer. The indentation hardness of clay shale reaches up to 416.92 MPa by compounding the polymer with 10 percent KCl, and the dendrite arm spacing of sodium montmorillonite can be reduced to 14.96767 angstroms by compounding with 2 percent KCl.

The invention discloses blue attapulgite polymer clay powder. The technical scheme is characterized in that the blue attapulgite polymer clay powder is prepared from purified blue attapulgite clay, white bentonite, sepiolite, anatase titanium dioxide, phthalocyanine blue, calcium chloride, sodium polyacrylate, sodium carboxymethylcellulose and sodium stearoyl lactylate by the following steps of: mixing the ingredients of the blue attapulgite polymer clay powder, feeding in a crusher to crush, feeding the crushed mixture into a pulverizer to be pulverized into powder and packaging into a finished product of the blue attapulgite polymer clay powder. Blue attapulgite polymer clay made by adding water and methyl silicone oil to the blue attapulgite polymer clay powder has the advantages of high viscosity, good flexible plasticity, small shrinkage, no corrosiveness and no greasy feeling, is hardened after natural drying without baking and is crackless. The invention has the characteristics of simple production process and low cost, is convenient to use and benefits popularization and use, and the blue attapulgite polymer clay powder is suitable for making blue attapulgite polymer clay on site.